He uses historical footage of London from 1924 with new footage he shoots in 2014 and splices them together into one frame.

Smith writes:

"In 1924, Harry B. Parkingson and Frank Miller documented London in a fantastic series of short films, known as Wonderful London. Over the last few months, I have stood in their foot-steps, recapturing their shots exactly, and have blended the two together creating a window through time."